import 'package:flutter/material.dart';

import '../../../../core/theme/app_typography.dart';
import 'login_colors.dart';

/// BCPL wordmark with blue and green swooshes, matching the login design.
class BcplLogo extends StatelessWidget {
  const BcplLogo({super.key, this.height = 48});

  final double height;

  @override
  Widget build(BuildContext context) {
    final colors = LoginColors.of(context);

    return SizedBox(
      height: height,
      child: CustomPaint(
        painter: _BcplLogoPainter(
          primaryBlue: colors.primaryAction,
          accentGreen: colors.colorScheme.secondary,
        ),
        child: Align(
          alignment: Alignment.topCenter,
          child: Padding(
            padding: EdgeInsets.only(top: height * 0.08),
            child: Text(
              'BCPL',
              style: TextStyle(
                fontFamily: AppTypography.fontFamily,
                fontSize: height * 0.58,
                fontWeight: AppTypography.bold,
                fontStyle: FontStyle.italic,
                letterSpacing: -0.5,
                color: colors.headingColor,
                height: 1,
              ),
            ),
          ),
        ),
      ),
    );
  }
}

class _BcplLogoPainter extends CustomPainter {
  _BcplLogoPainter({
    required this.primaryBlue,
    required this.accentGreen,
  });

  final Color primaryBlue;
  final Color accentGreen;

  @override
  void paint(Canvas canvas, Size size) {
    final bluePaint = Paint()
      ..color = primaryBlue
      ..style = PaintingStyle.stroke
      ..strokeWidth = size.height * 0.055
      ..strokeCap = StrokeCap.round;

    final greenPaint = Paint()
      ..color = accentGreen
      ..style = PaintingStyle.stroke
      ..strokeWidth = size.height * 0.045
      ..strokeCap = StrokeCap.round;

    final centerX = size.width / 2;
    final baseY = size.height * 0.82;

    final bluePath = Path()
      ..moveTo(centerX - size.width * 0.28, baseY)
      ..quadraticBezierTo(
        centerX - size.width * 0.05,
        baseY + size.height * 0.08,
        centerX + size.width * 0.3,
        baseY - size.height * 0.02,
      );
    canvas.drawPath(bluePath, bluePaint);

    final greenPath = Path()
      ..moveTo(centerX - size.width * 0.22, baseY + size.height * 0.06)
      ..quadraticBezierTo(
        centerX,
        baseY + size.height * 0.14,
        centerX + size.width * 0.24,
        baseY + size.height * 0.04,
      );
    canvas.drawPath(greenPath, greenPaint);
  }

  @override
  bool shouldRepaint(covariant _BcplLogoPainter oldDelegate) {
    return oldDelegate.primaryBlue != primaryBlue ||
        oldDelegate.accentGreen != accentGreen;
  }
}